Owl PaciT vs Waterfall Security Solutions: Side-by-Side Comparison (2026)

Owl PaciT

Mid-market and enterprise OT teams protecting critical infrastructure from lateral movement will value Owl PaciT's hardware-enforced one-way data transfer, which eliminates the attack surface that software-only segmentation leaves open. The two-server architecture with dedicated send and receive appliances running hardened Linux means no bidirectional packet leakage, no matter what malware sits upstream. Skip this if your priority is visibility into OT traffic flows; Owl PaciT enforces isolation over monitoring, so teams expecting real-time anomaly detection on the data diode itself will need separate continuous monitoring tools to satisfy that NIST function.

Waterfall Security Solutions

Enterprise and mid-market teams running critical OT/ICS infrastructure will get the most from Waterfall Security Solutions because hardware-enforced unidirectional gateways actually stop lateral movement that software firewalls can't, turning network segmentation from a policy exercise into a physics problem. The tamper-proof Waterfall Blackbox forensic repository and centralized monitoring address the RS.MI and DE.CM gaps that plague most OT deployments, giving you provable incident containment when breaches happen. Skip this if you need bi-directional data flow between OT and IT networks or if your OT environment runs commodity IT protocols; Waterfall's strength is enforcing one-way trust boundaries, which means some legitimate use cases require workarounds like the WF-Secure Bypass emergency access mode.